Normalized defining polynomial
\( x^{7} - x^{6} - x^{5} + 4x^{4} - 2x^{3} - 4x^{2} + x + 1 \)
Invariants
Degree: | $7$ | sage: K.degree()
gp: poldegree(K.pol)
magma: Degree(K);
oscar: degree(K)
| |
Signature: | $[5, 1]$ | sage: K.signature()
gp: K.sign
magma: Signature(K);
oscar: signature(K)
| |
Discriminant: | \(-3685907\) \(\medspace = -\,59\cdot 62473\) | sage: K.disc()
gp: K.disc
magma: OK := Integers(K); Discriminant(OK);
oscar: OK = ring_of_integers(K); discriminant(OK)
| |
Root discriminant: | \(8.67\) | sage: (K.disc().abs())^(1./K.degree())
gp: abs(K.disc)^(1/poldegree(K.pol))
magma: Abs(Discriminant(OK))^(1/Degree(K));
oscar: (1.0 * dK)^(1/degree(K))
| |
Galois root discriminant: | $59^{1/2}62473^{1/2}\approx 1919.8716102906465$ | ||
Ramified primes: | \(59\), \(62473\) | sage: K.disc().support()
gp: factor(abs(K.disc))[,1]~
magma: PrimeDivisors(Discriminant(OK));
oscar: prime_divisors(discriminant((OK)))
| |
Discriminant root field: | \(\Q(\sqrt{-3685907}) \) | ||
$\card{ \Aut(K/\Q) }$: | $1$ | sage: K.automorphisms()
magma: Automorphisms(K);
oscar: automorphisms(K)
| |
This field is not Galois over $\Q$. | |||
This is not a CM field. |
Integral basis (with respect to field generator \(a\))
$1$, $a$, $a^{2}$, $a^{3}$, $a^{4}$, $a^{5}$, $a^{6}$
Monogenic: | Yes | |
Index: | $1$ | |
Inessential primes: | None |
Class group and class number
Trivial group, which has order $1$
Unit group
Rank: | $5$ | sage: UK.rank()
gp: K.fu
magma: UnitRank(K);
oscar: rank(UK)
| |
Torsion generator: | \( -1 \) (order $2$) | sage: UK.torsion_generator()
gp: K.tu[2]
magma: K!f(TU.1) where TU,f is TorsionUnitGroup(K);
oscar: torsion_units_generator(OK)
| |
Fundamental units: | $a^{6}-a^{5}-a^{4}+4a^{3}-2a^{2}-4a+1$, $a^{5}-a^{4}+3a^{2}-2a-1$, $2a^{6}-3a^{5}+8a^{3}-8a^{2}-3a+3$, $a^{6}-a^{5}-a^{4}+4a^{3}-2a^{2}-4a$, $2a^{6}-3a^{5}+8a^{3}-8a^{2}-3a+4$ | sage: UK.fundamental_units()
gp: K.fu
magma: [K|fUK(g): g in Generators(UK)];
oscar: [K(fUK(a)) for a in gens(UK)]
| |
Regulator: | \( 3.97075418981 \) | sage: K.regulator()
gp: K.reg
magma: Regulator(K);
oscar: regulator(K)
|
Class number formula
\[ \begin{aligned}\lim_{s\to 1} (s-1)\zeta_K(s) =\mathstrut & \frac{2^{r_1}\cdot (2\pi)^{r_2}\cdot R\cdot h}{w\cdot\sqrt{|D|}}\cr \approx\mathstrut &\frac{2^{5}\cdot(2\pi)^{1}\cdot 3.97075418981 \cdot 1}{2\cdot\sqrt{3685907}}\cr\approx \mathstrut & 0.207922106875 \end{aligned}\]
Galois group
A non-solvable group of order 5040 |
The 15 conjugacy class representatives for $S_7$ |
Character table for $S_7$ |
Intermediate fields
The extension is primitive: there are no intermediate fields between this field and $\Q$. |
Sibling fields
Degree 14 sibling: | deg 14 |
Degree 21 sibling: | deg 21 |
Degree 30 sibling: | deg 30 |
Degree 35 sibling: | deg 35 |
Degree 42 siblings: | deg 42, some data not computed |
Minimal sibling: | This field is its own minimal sibling |
Frobenius cycle types
$p$ | $2$ | $3$ | $5$ | $7$ | $11$ | $13$ | $17$ | $19$ | $23$ | $29$ | $31$ | $37$ | $41$ | $43$ | $47$ | $53$ | $59$ |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cycle type | ${\href{/padicField/2.4.0.1}{4} }{,}\,{\href{/padicField/2.3.0.1}{3} }$ | ${\href{/padicField/3.7.0.1}{7} }$ | ${\href{/padicField/5.5.0.1}{5} }{,}\,{\href{/padicField/5.2.0.1}{2} }$ | ${\href{/padicField/7.4.0.1}{4} }{,}\,{\href{/padicField/7.3.0.1}{3} }$ | ${\href{/padicField/11.5.0.1}{5} }{,}\,{\href{/padicField/11.2.0.1}{2} }$ | ${\href{/padicField/13.3.0.1}{3} }{,}\,{\href{/padicField/13.2.0.1}{2} }^{2}$ | ${\href{/padicField/17.7.0.1}{7} }$ | ${\href{/padicField/19.7.0.1}{7} }$ | ${\href{/padicField/23.7.0.1}{7} }$ | ${\href{/padicField/29.4.0.1}{4} }{,}\,{\href{/padicField/29.2.0.1}{2} }{,}\,{\href{/padicField/29.1.0.1}{1} }$ | ${\href{/padicField/31.4.0.1}{4} }{,}\,{\href{/padicField/31.3.0.1}{3} }$ | ${\href{/padicField/37.4.0.1}{4} }{,}\,{\href{/padicField/37.2.0.1}{2} }{,}\,{\href{/padicField/37.1.0.1}{1} }$ | ${\href{/padicField/41.5.0.1}{5} }{,}\,{\href{/padicField/41.2.0.1}{2} }$ | ${\href{/padicField/43.3.0.1}{3} }^{2}{,}\,{\href{/padicField/43.1.0.1}{1} }$ | ${\href{/padicField/47.5.0.1}{5} }{,}\,{\href{/padicField/47.1.0.1}{1} }^{2}$ | ${\href{/padicField/53.3.0.1}{3} }{,}\,{\href{/padicField/53.2.0.1}{2} }{,}\,{\href{/padicField/53.1.0.1}{1} }^{2}$ | R |
In the table, R denotes a ramified prime. Cycle lengths which are repeated in a cycle type are indicated by exponents.
Local algebras for ramified primes
$p$ | Label | Polynomial | $e$ | $f$ | $c$ | Galois group | Slope content |
---|---|---|---|---|---|---|---|
\(59\) | $\Q_{59}$ | $x + 57$ | $1$ | $1$ | $0$ | Trivial | $[\ ]$ |
$\Q_{59}$ | $x + 57$ | $1$ | $1$ | $0$ | Trivial | $[\ ]$ | |
59.2.1.2 | $x^{2} + 59$ | $2$ | $1$ | $1$ | $C_2$ | $[\ ]_{2}$ | |
59.3.0.1 | $x^{3} + 5 x + 57$ | $1$ | $3$ | $0$ | $C_3$ | $[\ ]^{3}$ | |
\(62473\) | Deg $2$ | $2$ | $1$ | $1$ | $C_2$ | $[\ ]_{2}$ | |
Deg $5$ | $1$ | $5$ | $0$ | $C_5$ | $[\ ]^{5}$ |
Artin representations
Label | Dimension | Conductor | Artin stem field | $G$ | Ind | $\chi(c)$ | |
---|---|---|---|---|---|---|---|
* | 1.1.1t1.a.a | $1$ | $1$ | \(\Q\) | $C_1$ | $1$ | $1$ |
1.3685907.2t1.a.a | $1$ | $ 59 \cdot 62473 $ | \(\Q(\sqrt{-3685907}) \) | $C_2$ (as 2T1) | $1$ | $-1$ | |
6.680...307.14t46.a.a | $6$ | $ 59^{5} \cdot 62473^{5}$ | 7.5.3685907.1 | $S_7$ (as 7T7) | $1$ | $-4$ | |
* | 6.3685907.7t7.a.a | $6$ | $ 59 \cdot 62473 $ | 7.5.3685907.1 | $S_7$ (as 7T7) | $1$ | $4$ |
14.184...201.21t38.a.a | $14$ | $ 59^{4} \cdot 62473^{4}$ | 7.5.3685907.1 | $S_7$ (as 7T7) | $1$ | $6$ | |
14.462...249.42t413.a.a | $14$ | $ 59^{10} \cdot 62473^{10}$ | 7.5.3685907.1 | $S_7$ (as 7T7) | $1$ | $-6$ | |
14.125...707.30t565.a.a | $14$ | $ 59^{9} \cdot 62473^{9}$ | 7.5.3685907.1 | $S_7$ (as 7T7) | $1$ | $-4$ | |
14.680...307.30t565.a.a | $14$ | $ 59^{5} \cdot 62473^{5}$ | 7.5.3685907.1 | $S_7$ (as 7T7) | $1$ | $4$ | |
15.680...307.42t412.a.a | $15$ | $ 59^{5} \cdot 62473^{5}$ | 7.5.3685907.1 | $S_7$ (as 7T7) | $1$ | $5$ | |
15.462...249.42t411.a.a | $15$ | $ 59^{10} \cdot 62473^{10}$ | 7.5.3685907.1 | $S_7$ (as 7T7) | $1$ | $-5$ | |
20.462...249.70.a.a | $20$ | $ 59^{10} \cdot 62473^{10}$ | 7.5.3685907.1 | $S_7$ (as 7T7) | $1$ | $0$ | |
21.462...249.84.a.a | $21$ | $ 59^{10} \cdot 62473^{10}$ | 7.5.3685907.1 | $S_7$ (as 7T7) | $1$ | $1$ | |
21.170...843.42t418.a.a | $21$ | $ 59^{11} \cdot 62473^{11}$ | 7.5.3685907.1 | $S_7$ (as 7T7) | $1$ | $-1$ | |
35.214...001.126.a.a | $35$ | $ 59^{20} \cdot 62473^{20}$ | 7.5.3685907.1 | $S_7$ (as 7T7) | $1$ | $-5$ | |
35.314...443.70.a.a | $35$ | $ 59^{15} \cdot 62473^{15}$ | 7.5.3685907.1 | $S_7$ (as 7T7) | $1$ | $5$ |